Unified Interior Regions

U.S. Geological Survey field crews are measuring record flooding on rivers and streams in 12 states across the country. USGS is making preparations for a prolonged field effort along the Ohio and Mississippi Rivers as major flooding will extend well into mid-to-late January, particularly along the lower Mississippi River.

U.S. Geological Survey field crews are measuring near-historic flooding on rivers and streams across Illinois.

Rapid predictions of harmful algal blooms, or large growths of toxin-producing bacteria in water, can help prevent recreationalists from getting sick at Ohio lakes, according to a new U.S. Geological Survey report.

For the first time, land and resource managers in the Great Lakes will be able to distinguish between the various sources of mercury in the environment, a toxic chemical of significant concern in the region. This is thanks to a new tool that “fingerprints” the mercury, developed by the U.S. Geological Survey and the University of Wisconsin-Madison.

A newly published, three-volume “Remote Sensing Handbook” is a comprehensive coverage of all remote sensing topics written by over 300 leading global experts.

With the release of new US Topo maps for Illinois and South Dakota, the USGS has completed the second, three-year cycle of revising and updating electronic US Topo quadrangles. This means that since late 2009, the USGS has published nearly every map in the conterminous U.S., twice.

Grass carp egg survival is compromised when they settle on streambeds and are potentially covered by sediments, according to a new study by the U.S. Geological Survey. It has been long assumed that the eggs of Asian carps, including grass carp, must be carried in the water current in order to hatch successfully, but no previous scientific studies have proven that theory.

Silver carp, a species of invasive Asian carp, demonstrated a strong aversion to certain noises during a recent study on the potential use of sound for silver carp control.

The U.S. Geological Survey will celebrate the newest addition to its fleet of large research vessels during a traditional ceremony in Cheboygan, Michigan, on Monday. The entire Great Lakes fleet will also be dedicated during the ceremony.

Representatives from the offices of Senator Tammy Baldwin, Senator Ron Johnson and Congressman Mark Pocan will join leaders from the U.S. Geological Survey, federal and state partners and city officials for a special 40th anniversary event at the USGS National Wildlife Health Center (NWHC) in Madison, Wisconsin, this Friday.

Computer simulations of earthquake shaking, replicating the quakes that occurred in 1811-1812 in the New Madrid seismic zone (NMSZ), indicate that future large earthquakes there would produce major, prolonged ground shaking.